github.com/aquasecurity/trivy-iac@v0.8.1-0.20240127024015-3d8e412cf0ab/avd_docs/aws/cloudwatch/AVD-AWS-0158/docs.md (about)

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     2  You can do real-time monitoring of API calls by directing CloudTrail logs to CloudWatch Logs and establishing corresponding metric filters and alarms.   
     3  Network gateways are required to send and receive traffic to a destination outside a VPC.                                                              
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     5  CIS recommends that you create a metric filter and alarm for changes to network gateways. Monitoring these changes helps ensure that all ingress and egress traffic traverses the VPC border via a controlled path.
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     7  ### Impact
     8  Network gateways control the ingress and egress, changes could be made to maliciously allow egress of data or external ingress. Without alerting, this could go unnoticed.
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    10  <!-- DO NOT CHANGE -->
    11  {{ remediationActions }}
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    13  ### Links
    14  - https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudwatch-alarms-for-cloudtrail.html
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